Test directory: Serotonin, Serum

Ordering Code 4378
Test Name Serotonin, Serum
Alias 5-Hydroxytryptamine
Preferred Specimen Serum
Preferred Container Plain (Red)
Other Specimen/Container Serum in SST (Gold)
Optimum Volume 2 mL
Collection Instructions Patient to avoid tobacco, tea and coffee three days prior to specimen collection. Patient should avoid food high in indoles: avocado, banana, tomato, plum, walnut, pineapple and eggplant.
Handling Instructions Separate and freeze immediately.
Transport Requirements Oahu: Frozen
Airline: Frozen
Specimen Stability Ambient: Not Stable
Refrigerated: Not Stable
Frozen: 6 Weeks
Rejection Criteria Thawed, Received room temp or refrigerated
Avail. Stat NO
Analytic Time Up to 7 Days
Methodology HPLC, Fluorescence Detection
Reference Lab  Quest Diagnostic Lab-NI

Reference range(s)

The reference ranges listed below are valid on this date of June 29, 2025.
Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Serotonin, Serum ALL See report.